Day: March 1, 2014

RS-232

RS-232 Electronic Design & Firmware by Embedded Design Engineer John Heritage RS-232 RS-232 is one of the very first serial protocols I leaned fully and worked with back in the 1980’s. My BBC B Computer back in the day had a serial port and was technically an “RS-432” port, electrically different to, but compatible with, RS-232 […]

RS-422 RS-485

RS-422 and RS-485 Electronic Design & Firmware by Embedded Design Engineer John Heritage I have worked with the RS-485 protocol when designing DMX lighting control hardware, by using differential line drivers high speed serial data can be achieved in a multi node control system. TIA/EIA-422-B (typically referred to as RS-422) and TIA/EIA-485-A (typically referred to as […]